Simulation of nonstationary phenomena in atmospheric-pressure glow discharge

Nonstationary processes in atmospheric-pressure glow discharge manifest themselves in spontaneous transitions from the normal glow discharge into a spark. In the experiments, both so-called completed transitions in which a highly conductive constricted channel arises and incomplete transitions accom...

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Bibliographic Details
Published in:Plasma physics reports 2016-06, Vol.42 (6), p.592-600
Main Authors: Korolev, Yu. D., Frants, O. B., Nekhoroshev, V. O., Suslov, A. I., Kas’yanov, V. S., Shemyakin, I. A., Bolotov, A. V.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AIR
ATMOSPHERIC PRESSURE
Atomic
GLOW DISCHARGES
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
Low-Temperature Plasma
Molecular
MOLECULES
NITROGEN
NITROGEN OXIDES
Optical and Plasma Physics
OXYGEN
OXYGEN IONS
OZONE
Physics
Physics and Astronomy
PLASMA SIMULATION
POSITIVE COLUMN
WAVE FORMS
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Summary:Nonstationary processes in atmospheric-pressure glow discharge manifest themselves in spontaneous transitions from the normal glow discharge into a spark. In the experiments, both so-called completed transitions in which a highly conductive constricted channel arises and incomplete transitions accompanied by the formation of a diffuse channel are observed. A model of the positive column of a discharge in air is elaborated that allows one to interpret specific features of the discharge both in the stationary stage and during its transition into a spark and makes it possible to calculate the characteristic oscillatory current waveforms for completed transitions into a spark and aperiodic ones for incomplete transitions. The calculated parameters of the positive column in the glow discharge mode agree well with experiment. Data on the densities of the most abundant species generated in the discharge (such as atomic oxygen, metastable nitrogen molecules, ozone, nitrogen oxides, and negative oxygen ions) are presented.
ISSN:1063-780X
1562-6938
DOI:10.1134/S1063780X16060052